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Finding the Fourth Proportional to 500.98, 691.44 and 377.26

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Solution

The fourth proportional to 500.98, 691.44 and 377.26 is: 520.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    500.98 : 691.44 = 377.26 : x
  2. Step 2: Convert to fraction form
    500.98/691.44 = 377.26/x
  3. Step 3: Cross multiply
    500.98x = 691.44 × 377.26
  4. Step 4: Simplify right side
    500.98x = 260,852.65
  5. Step 5: Solve for x
    x = 260,852.65/500.98
  6. Step 6: Final answer
    x = 520.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.